One of the most common wear items in the Mazda Miata NA/NB/NC (5 speed Only) that causes slack in shifting is the shifter collar bushing. Over time, the plastic OEM piece is subjected to heat and pressure, which causes the bushing to loosen, expand, deform, and/or break apart. Our new brass shifter collar bushing eliminates this slack and allows for long lasting performance as well as prevents damage and wear to other transmission components. For the most noticeable difference, pair this with a shifter rebuild for the ultimate shifter refresh and feel. Compatible with OE shifter.

NOTE – For NB1 (6-speed) Customer, If your Miata NB is manufactured between 2001~2002 with 15mm Shifter tip, please check your VIN before ordering. 
If the last six digits of your VIN is below 220739, you will need SLC-MNA01-BOM.
If the last six digits of your VIN is above 220740, you will need SLC-MNB02-BOM.